亚洲一区欧洲一区_国产经典一区二区_岛国视频一区免费观看_小受咬床单失禁的GV在线观看_亚洲精品蜜夜内射_一性一乱一交一精一品

       Bosite has a full range of testing equipment, the establishment of a complete set of quality assurance system, strict testing procedures. Nondestructive testing, spectroscopic analysis, physical and chemical test, hardness test, wall thickness test, mechanical performance test, metallographic analysis, pressure test and CAD valve design center.

       From raw materials into the plant, process and machine factory all aspects of tracking and detection, when each of our products are in accordance with the national standard of 100% tests.

       Advanced detection equipment and strict scientific management, so that each of the finished products can stand selection, which is the secret of Bosite products to sell well.